Support for cooling plates or coils in blast-furnaces.



. m 4 'PATENTED NOV. 17, 1903.

A... FARRELL. swmm PM; mwmm PLATES 0R cans m BLAST FURNACES.

APPLIOA'I'IGN 211.21) JULY 19, 1902. x50 me-BBL.

8 SHEETS-SHEET 1.

h I "1, I waw J ,rmz

.PATENTED NOV. 17, 1903.

A. FARRELL.

SUPPORT FOR COOLING PLATES OR. OOILS IN BLAST FURNACES;

APPLIOATION IILED JULY 19; 1902.

s sums-$113121 2 NO MODEL.

1%. 744,319. EATENTED NOV. 17, 1903. A FARRELL SUPPORT FOR 000mm PLATES as, 0011s In SLAST FURNACES.

' APPLICATIGIZ FILE?) JULY 19, 1902. I 10 110mm. a sums-sum 3.

1F Rani-n on cit-Amen,

WlluL'IAM G f -MATHE a Tool; whom it 71mg concern:

Beitk'nown thatI, ;.;nsTIN FARRELL, a citizen ;of""theUnited States, and a resident of Gladstone,county'ofDelta,and State ofMichigan, have invented certain new anduseful Supports for Coolin g Plates or Coils in Blast;-

" Furnaces, of which the following is declared to be a full, clear, and exact description.

The invention relates to improved means for supporting cooling plates or coils in blastf u-rnaces, and more particularly to cooling devices employed, in the -furnace-boshes.

To pre'se'rve the "life of the bosh-wall, at which the highest temperature is maintained, cooling means are provided and preferably comprise 's'uperposedcircular rows of cooling plates 'or'coils,whichex'tend horizontally within the fire-brick bO YLOf the wall. Such constructions'have been found defective inthat after the furnace has been in operation for sometime the fire-brick-supporting the cool-- ing-jplates bu'rns'ou t' or'breaks away and the latter dip" or 'sag from position, frequently breaking the water connections and occasioning considerable delay in the operation of the furnace. p

Broadly stated, the present invention consists in providing the bosh wall of the furnace with a surrounding metal frame or support provided with means for securing thereto the outer portions of the cooling plates or coilsin manner permitting the plates or coils to be removedwithout disturbing the surrounding metal frame; r

' The invention also consists in-features of 7 construction "hereinafter described, illusof the plates.

trated in the accompanying drawings, and

- mofe' particularly pointed out in the claims at the end of this specification.

' In thedrawings, Figure 1 is a vertical sec tion of a blast-furnace with the improvement applied Fig.2 is an elevation, partially in section,' of the series of supporting rings or bands." Fig. 3 is a horizontal section on line 3 3 of Fig."-1.' Fig. 4 isa detail vertical section illustrating the manner of supporting one Fig. 5is a View, partlyin elevation and partly in'vertical section, showing a modified form of the invention.

' In the construction illustrated the supporting-columns carry I-beams 11, upon which M IcHIeaN,'lAss feNoia ooutin 'T FI -QLEVE AND:01119;;

if'SLlPP-ORT FORICOOLING PLATES 0R colts IN BQLAST-FURNAVCES.

rncfrfoarrotrjfemnin part of Letters Patent No. 744,319, dated November 17, 1903. a f Application filed July 19, 1902. Serial No. 116,140. (No model.)

shown surrounded by a jacket .or sheathing Patented November 17,1903.

16and is provided with the usual twyer-opening 17.and cinder-notch 18. The fire-brick bosh-wall 19,0f the usual inverted-cone-shape formation, extends between the hearth and the shaft 13.

The parts thus fardescribed are of common design, form no part of the present invention, and may be modified as desired, it becould be applied to a furnace of any suitable construction.

superposed circular rows of hollow plates or coils extending within the bosh-wall have been'found effects We for cooling this part of the furnacei Such horizontal cooling plates or coils forthe purposes of this invention may be of any suitlng understood that the present improvement horizontally at intervals T able construction; but, preferably, fiat hollow sectional plates are employed, which are arranged in superposed rows extending horizontally within the fire-brick body of the wall with their outer ends flush with or near its face. The separate plates of each row are arranged in circular series (see Fig. 3) and spaced slightly apart from one another, and the plates of the separate rows are staggered to cool all portions of the bosh-wall. Such cooling plates or coils as previously arranged are dependent for their support upon the firebrick body of the wall itself. Under the intense heat to which these walls are subjected considerable expansion and contractionl-z take place, and after the furnace has been in operation some time the fire-brick burn out]. and tend to work loose, thus breaking away? the support from beneath the horizontal cool ing plates or coils. The latter frequently sag or dip from place, the water connections break loose, expense and delay in operating ,7 itself are apt the furnace are experienced, and dangerous break-outs of the furnace-wall to occur.

cog:

The present invention provides the hoshwall of the furnace with a surrounding metal. 1

frame consisting, preferably, of a series of cast or wrought metal rings or annular bands 21, which conform to the general shape of the p bash-wall 19 and extend around the same between the circular rows of horizontal coolingpl'ates 20. The rings or bands extend, preferably, externally in horizontal direction about the Dosh-wall 19, andeaeh ring or band extends vertically between the upper and lower face of each pair of adjacent rows of cooling plates or coils in such manner that the latter are supported at their outer ends independently of the brick body of the wall, and thus prevented from tipping. The cooling-plates 20 may-be sustained at their outer endsbetween adjacent rings or hands 21 in any suitable manner; but preferably each band is providedat its upper and lower edge with aninwardly and horizontally project-- ing support or ledge 22, which are thus arranged in pairs and between which the outer ends of the cooling-plates 20 are sustained against tipping. The supports or ledges 22 be formed integrally with the body of the rings or bands 21, as shown in Fig. 5- that is to say, the latter may be formed of channel-bars with the flanges turned in- These butt-straps may, however, be dispensed,

with, as shown in Fig. 5, and the separate rings 21, extending between the rows of cooling-plates, alone depended upon to sustain them in position and prevent them from tipg purpose s ping.

- In the form shown in Figs. 1 and 2 the series of connected rings are preferably hung from the f urnace-mantle and there supported independently of the bosh wall 19. For this the topmost ring. is provided at its upper end with an outwardly-projecting annular flange 24, which engages the inner edge of the mantle base-plate 12. Flange 24 may, if desired, be formed integrally with the topmost band 21, but for cheapness of construction is preferably formed of an angle-bar properly shaped and riveted or otherwise rigidl y secured to the band.

The cooling plates or coils 20 are arranged with theiropter. ends between the pairs of ledges 22 upo'n the adjacent supporting-rings 21 and are. preferably embedded between layers of mortar '25, (see Fig. 4,) formed of mixed fire-clay and ground fire-brick. The

rings or hands 21 and their supporting-ledgesv 22 are preferably spaced somewhat farther apart than the thickness of thecooling-plates 20 in order that the latter may be removedby the use of a suitable tool engaging openings 26, formed in radial webs 27 upon the plates, (see Figs. 3 and 4,) and so that the plates may be conveniently reset in position after removal for repairs or the like. Wedges 28 are preferably driven between the outer end of each of thecooling-plates 20 and the adjacent supporting-ledges 22 to more ti rmlysecu re the plates in place. 1

Each cooling-plate 20 is provided with an inlet 29 and an outlet 30'for cooling-water, to which are connected the inlet and outlet pipes 31 and 32. These water connections may be arranged as desired. Each plate 20 may be connected separately to the source of supply, or the plates may be connected in series of two, three, .or four.

It is to be observed that by' sustaining the outer ends of the cooling-plates 20 between the ledges the brickwork may be burned out or broken away beneath them. In case one of the rings themselves becomes overheated because of the displacement of the brickwork, warning is immediately given, and a spray may be applied and the plate kept cool before any dam-'- age is done; Moreover, the rings 21 cover the larger part of the brickwork 19 between the rows of plates, and in the form shown in Figs. 1 and 2 the butt-straps 23 cover the brickwork between the separate plates of each row, so that the entire wall is firmly held in place and the tendency of the brick to work loose by the expansion and contraction of the wall is obviated.

22 of the supporting-rings 21 they cannot be displaced or tipped,,even though It will be noticed that the supporting-rings sustain the separate cooling-plates against tipping, and yet arenot so embedded within the bosh-wall 19 or otherwise so arranged as to weaken the fire-brick construction in'any way.

The supporting-rings 21 may be of cast or wrought iron or steel and maybe formed in separate pieces bolted or riveted together or in a single piece, as may be most easy of manufacture. The supporting ledges or flanges may be formed in piece with the separate rings, as shown in Fig. 5, or of separate angle-bars riveted in piece, as shown in Figs. 1 and 2. Means other than the ledges 22 may be employed for sustaining the cooling-plates 20 between the edges of the adjacent rings, and the details of construction may be otherwise modified without departure from the essentials of the invention.

1 am aware that Dosh-walls of blast-furnaces have heretofore been provided with encircling metal frames formed either of a series of superposed horizontal bands or of an encircling metal plate having cut-away spaces therein for the admission of the cooling plates or coils to the furnace-wall; but so far as I am aware the present invention presents the first instance of a blast-furnace the bosh-wall of which is provided with a metal frame and with a series of cooling lsextndm inwardly from said 4! rings being provide with lateral'ly-proje'ctitig' frame and. means fonsecurin g the outer pore tion ofysaid coolingplates or-.wcoils" to said framein, suchsmanner that the plates' or; coils. shall be suspended by said frame, but may be JQIIIQ ved' without drlS'tll rbing, said frame."

Having, h us described? m'ytinvention, what I clal m as, new,- and-desire to secure-by Letters Patent, isi l. A blast-furnace having a metalframe encircling its bosh-wall and provided with a series of cooling plates or coils extending in-' wardly from said, frame, and means for securing the outer portion of said cooling plates or coils to said frame in a manner permitting said plates or coiis'to be removed without disturbing said frame.

2. A blast-furnace having a metal frame extending about its bosh-wall, said frame being provided with horizontally-projectingsupports or ledges, and a series of cooling plates or coils extending within the body of the boshwalland suspended inpositio'n by the supports or ledges of said frame.

'3. Ina blast-furnace, a metal frame extending about but supported independently of the bosh-wall, and a series of superposed cooling plates or coils extending within the body of the wall, and means for securing the outer ends of said plates or coils to said frame.

4. In a blast-furnace,a series of superposed cooling plates or coils extendingi'nto the bosh- Wall of the furnace and a series of metal bands extending about the furnace-wall between the rows of (Fooling-plates, the outer ends of said cooling-plates being secured to Said metal bands in manner permitting said plates to be withdrawn without disturbing the bands.

5, In a blast-furnace, a series of superposed horizontal bands spaced apart and extending about the bosh-wall of the furnace, a seriesof cooling plates or coils extending betweeneach pair of adjacent bands and horizontally within the furnace-wall and means for supporting said cooling-plates by said bands in manner permitting the plates to be withdrawn without disturbing the bands.

6. A blast-furnace having encircling bands and provided with a cooling-plate located between the lines of the bands and secured to them by mechanism arranged to allow re moval without disturbing the bands.

7. A blast-furnace havingits bosh provided with encircling bands arranged one above the other and cooling-plates having their outer portion secured to said bands, said plates being arranged for removal without disturbing the furnace-bands. 1

8. Ablast-furnace havingits bosh provided with encircling bands, spacers extending vertically between them, and cooling-plates secured to the bands.

9. In a blast-furnace, a series of superposed horizontal bands or rings spaced apart and extending about the bosh-wall, said bands or supports or ledgesand aseries of -cooling plates "or i coil's extendi horizontal thewalland sustaineda t S3ld=SHpp0rt$ 0 l agr 10. In a blast-fu'rna'ce,a series of sup rings spaced apart and each extending horizontally about the furnace -wall andvertically between a pair of adjacent rowsof cooling plates or coils and inwardly and horizon tallyexten ding ledges at the upperand lower edges of each of said bands arranged to engage the outer ends of said-plates or coils.

11. In a blast-furnace, a series of superposed horizontal bands or rings spaced apart and extending about the bosh-wall,'each of said bands being provided at itsupper end with an inwardlyand horizontally projecting ledge and rows of cooling-plates arranged in circular series extending horizontally between the s'upporting-ledges of each pair of adjacent bands or rings and within the body of the bosh-wall, whereby said plates orcoils are held against tipping.

12. In a blast-furnace, a series of superposed, horizontal bapds spaced apart and extending about the bosh-wall of the furnace, and a row of cooling-plates extending intothe bosh-wall and having their outer ends arranged between adjacent bands and means for keying the outer ends of said coolingplates between the adjacent bands.

13. In a blast-furnace, a series of superposed horizontal bands or rings spaced apart and extending about the bosh-wall, angle-bars secured to the upper and lower edges of each of said bands or rings and forming inwardlyextending supporting-ledges,and a row of cooling plates or coils secured in position at their outer ends-between the ledges of each pair of adjacentrings and extending horizontally withi the body of the bosh-wall.

14. In a blast-furnace, a series of superposed horizontal bands or rings spaced apart and extending'aliout the furnace-wall, connections between said rings, and cooling plates or coils extending horizontally between said rings and within the body of the boshwall, and-means for securing. the outer ends of said cooling plates or coils to said bands or rings, wherebysaid plates or coils are held by said rings against tippin 15. In a blast-furnace, a series'of superposed horizontal bands or rings spaced apart and extending about the bosh-wall, connecting butt-straps between each pair of adjacent bands or rings, means for sustaining the series of connected bands or rings from the furnace-mantle, and a row of cooling plates or coils extending horizontally between each pair of adjacent bands or rings and within 7 the body of the bosh-wall the outer ends of such cooling plates or coils being secured to said bands or rings, whereby said plates or coils are sustained in position at their outer ends by said bands or rings.

16. In a blast-furnace, a series of super;- posed horizontal metal bands or rings spaced apart and extending about the bosh-wali, connections between each pair of adjacent rings, each of the latter being provided at its upper and lower edges with inwardly and horizontally projecting supports or ledges, and a number of rows of cooling plates or coils extending horizontally within the body of the bosh-Wall and sustained at their outer ends between the supports or ledges of two adjacent bands or rings and water connections for said plates or coils.

17, In a blast-furnace, a series of superposed horizontal metal rings spaced apart and extending about the boshwall, connecting buttstraps between each pair of adjacent rings, means for supporting the series of connected rings from the furnace-mantle, each of said rings being provided at its upper and loweredge with an inwardly-projectingledge, and a row of cooling-plates ext-ending horizontally between the ledges of each adjacent pair of rings and within the body of the bush-wall, said cooling-plates being keyed in position at their outer end between said ledges and water connections for said cooling-plates.

AUSTIN FARRELL. X'Vitnesses:

ALBERTA ADAMICK, HARRY L. OLAPP. 

